Locking device for grate-bars.



No.866,173. PATBNTED SBPT.17, 1907. B. WILTON.

LOOKING DEVICE FOR GRATE BARS. APPLIOATIOH rmin we. a, 1906.

WITNESSES INVENTOR UNITED STATES PATENT OFFICE.

EDWARD WILTON, OF JERSEY CITY, NEW JERSEY, ASSIGNOR TO GEORGE H. CLARKE,OF

BROOKLYN, NEW YORK. I

LOCKING DEVICE FOR GRATE-BARS.

Specification of Letters Patent.

Patented Sept. 17, 1907.

Application filed August 6, 1906. gerial No. 329,288.

To all whom it may concern:

Be it known that I, EDWARD WILTON, a citizen of the United States,residing at Jersey City, in the county of Hudson and State of NewJersey, have invented cer tain new and useful Improvements in LookingDevices for Grate-Bars, of which the following is a speci fication. I

My invention relates to improvements in looking devices for grate barsand the object of my invention is to provide an effective and simplemeans for locking grate bars against accidental movement. I accomplishthis result by the mechanism illustrated in the accompanying drawings,in which Figure 1 is a view of my device locked Fig. 2 is a view of thesame from above Fig. 3 is a View of the device unlocked. Fig. 4 is aview of the device showing its operative relation to the grate.

Similar letters refer to similar parts throughout the several views.

The grate n is supported on the bar m, pivoted at each end in the frameof the furnace. The arm Z is fixed to the bar m at right angles and itsfree end is pivoted to the operating rod a upon the outer end section ofwhich projecting through the outer face of the furnace f I provide aloose link ,b provided with a bent over end section b to rest againstthe face of the furnace f. This link b is provided with a longitudinalslot 6 and at its outer end is provided with a lateral cross slot bcommunicating with the longitudinal slot 6. The outer end of the rod (1is provided with a forked head a to receive the arm d.

A retaining bolt 0 is passed through openings in the sides of the forkedhead a of the rod (1 and the end of the arm d, passing through the slot0 and is retained by a screw nut h in the usual manner. A'washer g isalso provided under the screw nut h. The parts being thus assembled andthe rod a drawn out to its extreme length, the lateral slot b willengage the bolt 0 in the end of the rod (1 and the link b being ofsuitable length will prevent the accidental movement of the rod a andthe grate to which it is attached at its opposite end.

When it is desired to move the grate, the outer end of the link a israised and drawn out, the bolt a sliding in the longitudinal slot 6. Thegrate bar operating rod (1 will thus be released and may be operated bythe arm or lever d fulcrumed in the stationary support on the face ofthe furnace f. v

The grate bar operating rod a is locked by drawing it out to its fulllength and dropping the lateral slot b over the bolt 0 as abovedescribed. I

I prefer to extend the lateral slot (2 across the end of the link I) sothat either side may be used interchangeably. I also prefer to provide ahandle b on the end of the link Z) for the convenience of the operator.

Having thus described my invention, what I claim is 1. In combinationwith the operating rod, a link having a bent end to rest against theface of the furnace, said link having a longitudinal slot and at its endopposite to said bent end having a lateral slot communicating with saidlongitudinal slot, an arm, and a bolt extending through said rod, saidlink and said arm.

2. In combination with the operating rod of a furnace grate, anoperating arm for said rod, a link having a pair of communicating slotsarranged at right angles to one another, a bolt passed through said rod,arm and link slots, said link being slidable on said bolt and adaptedwhen said bolt is in one of said slots to have its inner end engage thefurnacerface.

In testimony whereof I aflix my signature in presence of two witnesses.

EDWARD WILTON.

Witnesses ADoLPn FISCHEL, JUSTIN S. GALLAND.

